>> Search results for: F173943 NSN Search Results National Stock Number (NSN) Description 3020-01-644-3194, 3020016443194 KEY,BLANK 3020-01-644-3343 , 3020016443343 SPROCKET WHEEL 5315-01-644-5709, 5315016445709 KEY 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information